Answer:
The right answer is, A. hablaste.
* Tú hablaste a mis amigos anteayer.
Step-by-step explanation:
Because the oation indicates an action that was performed in the past tense but that has not yet defined its end in the present, which indicates that the verbs must be conjugated in the preterite tense. It is important to identify the subject, gender and number within the sentence so the verb can be conjugated in a logical way and that it is coherent with what is being expressed.